Unknown Caller
7 months ago
Said hello and hung up
Community overview
Community rating:
Negative
4 user reports
First reported 10 Feb 2026
·
Last reported
7 months
ago
About this number
Number formats
- UK format: 020 8163 6801
- International: +44 20 8163 6801
Number details
- Number type: Landline
- Number range allocated to: Colt Technology Services
- Area: London
- Area code: 020
Reported categories
Based on 4 public user reports
Scam/Fraud
75% (3)
Unknown Caller
25% (1)
User Reports (4)
Scam/Fraud
8 months ago
Claims to be with O2 asking if I have slow internet. Probably a scam, my number used to be registered with Virgin but I moved it to a different service so they probably are just calling old numbers trying to get money out of them. I told them I was not with O2 or Virgin and they hung up.
Scam/Fraud
8 months ago
Claimed to be O2/Virgin, not a customer of either.
Scam/Fraud
8 months ago
Claim to be O2
Report this number: 020 8163 6801
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 8163 6801 and tap the info icon (i)
- Scroll down and tap Block this Caller
- Confirm by tapping Block Contact
On Android
- Open the Phone app and tap the 3-dot menu
- Go to Call history or Recents
- Long press on 020 8163 6801
- Select Block number or Block/report spam
On Landline Phones
Several options are available for UK landlines:
- BT Call Protect - free for BT customers
- TalkTalk CallSafe - free for TalkTalk customers
- Call blocking devices like CPR Call Blocker (available on Amazon)
Register with TPS (Telephone Preference Service)
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